MEDICAL FLUID THERAPY MACHINE INCLUDING PNEUMATIC PUMP BOX AND ACCUMULATORS THEREFORE

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(11)

EP 4 459 125 A3

(12)	EUROPEAN PATENT APPLICATION

(88)	Date of publication A3:
	22.01.2025 Bulletin 2025/04

(43)	Date of publication A2:
	06.11.2024 Bulletin 2024/45

(21)	Application number: 24200915.7

(22)	Date of filing: 27.10.2017

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International Patent Classification (IPC):

A61M 1/14^(2006.01)
F04B 43/073^(2006.01)

F04B 23/08^(2006.01)

(52)	Cooperative Patent Classification (CPC):
	A61M 1/14; A61M 2205/07; F04B 43/073; F04B 23/08

(84)	Designated Contracting States:
	AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

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Priority:

27.10.2016 US 201615336266

(62)	Application number of the earlier application in accordance with Art. 76 EPC:
	20213906.9 / 3824919
	17801161.5 / 3532124

(71)	Applicants:
	Baxter International Inc. Deerfield, IL 60015 (US) Vantive Health GmbH 8152 Glattpark (Opfikon) (CH)

(72)	Inventor:
	BOYLAN,, Charles Wayne St. Louis. Missouri, 63129 (US)

(74)	Representative: Potter Clarkson
	Chapel Quarter Mount Street Nottingham NG1 6HQ Nottingham NG1 6HQ (GB)

(54)	MEDICAL FLUID THERAPY MACHINE INCLUDING PNEUMATIC PUMP BOX AND ACCUMULATORS THEREFORE

(57) A medical fluid delivery machine including: a medical fluid pump including a pneumatically actuated pump chamber and first and second pneumatically actuated medical fluid valve chambers located respectively upstream and downstream of the pneumatically actuated pump chamber; a compresssor for creating positive pressure air; and an accumulator storing the positive pressure air for delivery to at least one of the pneumatically actuated pump chamber, the first pneumatically actuated medical fluid valve chamber, or the second pneumatically actuated medical fluid valve chamber, the accumulator holding an elastic bladder that inflates under positive pressure air from the compressor, creating additional positive pressure that increases the amount of positive pressure air that the accumulator can provide.

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